HEADER TRANSPORT PROTEIN 12-MAY-15 4ZRQ TITLE E88 deletion mutant of CD320 in complex with TC2 COMPND MOL_ID: 1; COMPND 2 MOLECULE: Transcobalamin-2; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 CD320 antigen; COMPND 7 CHAIN: C, D; COMPND 8 MUTATION: YES; COMPND 9 residues ; COMPND 10 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.60 ANGSTORMS DBREF 4ZRQ B 1 409 UNP P20062 TCO2_HUMAN 19 427 DBREF 4ZRQ D 53 171 UNP Q9NPF0 CD320_HUMAN 53 171 SEQRES 1 D 36 SER CYS PRO PRO THR LYS PHE GLN CYS ARG THR SER GLY SEQRES 2 D 36 LEU CYS VAL PRO LEU THR TRP ARG CYS ASP ARG ASP LEU SEQRES 3 D 36 ASP CYS SER ASP GLY SER ASP ARG LEU ALA ATOM 1 C1 GOL B 502 9.866 -50.295 -13.673 1.00107.08 ATOM 2 O1 GOL B 502 10.773 -50.835 -12.739 1.00105.19 ATOM 3 C2 GOL B 502 10.574 -50.141 -15.013 1.00107.87 ATOM 4 O2 GOL B 502 11.864 -50.702 -14.929 1.00107.86 ATOM 5 C3 GOL B 502 9.773 -50.851 -16.097 1.00107.70 ATOM 6 O3 GOL B 502 9.144 -51.990 -15.552 1.00110.70 TER ATOM 1 N SER D 53 33.729 -48.857 -17.764 1.00146.49 ATOM 2 CA SER D 53 33.221 -47.709 -17.020 1.00141.29 ATOM 3 C SER D 53 32.242 -48.128 -15.916 1.00137.18 ATOM 4 O SER D 53 31.346 -47.363 -15.557 1.00128.60 ATOM 5 CB SER D 53 32.539 -46.733 -17.994 1.00138.60 ATOM 6 OG SER D 53 31.936 -47.419 -19.084 1.00143.82 ATOM 7 N CYS D 54 32.426 -49.320 -15.356 1.00143.07 ATOM 8 CA CYS D 54 31.455 -49.850 -14.393 1.00139.55 ATOM 9 C CYS D 54 32.117 -50.396 -13.118 1.00144.41 ATOM 10 O CYS D 54 33.342 -50.402 -13.019 1.00152.74 ATOM 11 CB CYS D 54 30.630 -50.949 -15.090 1.00138.77 ATOM 12 SG CYS D 54 29.052 -51.424 -14.345 1.00153.44 ATOM 13 N PRO D 55 31.305 -50.753 -12.103 1.00137.26 ATOM 14 CA PRO D 55 31.703 -51.597 -10.968 1.00140.66 ATOM 15 C PRO D 55 31.556 -53.093 -11.293 1.00144.87 ATOM 16 O PRO D 55 31.039 -53.421 -12.360 1.00141.03 ATOM 17 CB PRO D 55 30.734 -51.177 -9.859 1.00131.55 ATOM 18 CG PRO D 55 29.563 -50.617 -10.565 1.00123.76 ATOM 19 CD PRO D 55 30.158 -49.899 -11.737 1.00126.23 ATOM 20 N PRO D 56 32.023 -53.987 -10.401 1.00152.35 ATOM 21 CA PRO D 56 31.867 -55.430 -10.658 1.00155.31 ATOM 22 C PRO D 56 30.453 -56.046 -10.487 1.00157.89 ATOM 23 O PRO D 56 29.946 -56.505 -11.510 1.00156.38 ATOM 24 CB PRO D 56 32.867 -56.064 -9.677 1.00155.79 ATOM 25 CG PRO D 56 33.125 -55.023 -8.644 1.00153.22 ATOM 26 CD PRO D 56 33.045 -53.722 -9.373 1.00153.88 ATOM 27 N THR D 57 29.847 -56.134 -9.298 1.00154.75 ATOM 28 CA THR D 57 28.520 -56.782 -9.233 1.00148.72 ATOM 29 C THR D 57 27.332 -55.821 -9.095 1.00137.71 ATOM 30 O THR D 57 26.452 -55.995 -8.248 1.00133.40 ATOM 31 CB THR D 57 28.420 -57.863 -8.128 1.00150.95 ATOM 32 OG1 THR D 57 28.028 -57.282 -6.880 1.00144.65 ATOM 33 CG2 THR D 57 29.729 -58.626 -7.994 1.00158.69 ATOM 34 N LYS D 58 27.353 -54.788 -9.924 1.00136.78 ATOM 35 CA LYS D 58 26.129 -54.218 -10.452 1.00130.00 ATOM 36 C LYS D 58 26.348 -54.495 -11.931 1.00135.74 ATOM 37 O LYS D 58 27.480 -54.764 -12.328 1.00143.09 ATOM 38 CB LYS D 58 25.970 -52.729 -10.135 1.00122.67 ATOM 39 N PHE D 59 25.302 -54.463 -12.747 1.00133.33 ATOM 40 CA PHE D 59 25.448 -54.785 -14.167 1.00137.09 ATOM 41 C PHE D 59 25.598 -53.456 -14.919 1.00135.67 ATOM 42 O PHE D 59 25.657 -52.409 -14.282 1.00132.21 ATOM 43 CB PHE D 59 24.244 -55.620 -14.642 1.00130.30 ATOM 44 CG PHE D 59 24.290 -56.016 -16.093 1.00133.27 ATOM 45 CD1 PHE D 59 25.283 -56.852 -16.572 1.00143.35 ATOM 46 CD2 PHE D 59 23.320 -55.580 -16.970 1.00130.80 ATOM 47 CE1 PHE D 59 25.316 -57.221 -17.907 1.00151.67 ATOM 48 CE2 PHE D 59 23.348 -55.956 -18.300 1.00138.22 ATOM 49 CZ PHE D 59 24.350 -56.764 -18.768 1.00149.29 ATOM 50 N GLN D 60 25.666 -53.487 -16.249 1.00135.97 ATOM 51 CA GLN D 60 25.838 -52.268 -17.048 1.00134.34 ATOM 52 C GLN D 60 24.889 -52.325 -18.243 1.00131.53 ATOM 53 O GLN D 60 24.455 -53.397 -18.615 1.00133.37 ATOM 54 CB GLN D 60 27.289 -52.133 -17.515 1.00142.96 ATOM 55 N CYS D 61 24.629 -51.219 -18.929 1.00127.55 ATOM 56 CA CYS D 61 23.474 -51.237 -19.829 1.00125.62 ATOM 57 C CYS D 61 23.913 -50.711 -21.206 1.00131.77 ATOM 58 O CYS D 61 24.815 -49.882 -21.285 1.00132.38 ATOM 59 CB CYS D 61 22.336 -50.432 -19.190 1.00119.03 ATOM 60 SG CYS D 61 20.744 -50.409 -20.019 1.00161.43 ATOM 61 N ARG D 62 23.295 -51.179 -22.293 1.00134.90 ATOM 62 CA ARG D 62 23.961 -51.036 -23.601 1.00135.23 ATOM 63 C ARG D 62 23.853 -49.808 -24.513 1.00132.65 ATOM 64 O ARG D 62 24.781 -49.593 -25.290 1.00138.07 ATOM 65 CB ARG D 62 23.542 -52.222 -24.483 1.00137.07 ATOM 66 N THR D 63 22.881 -48.915 -24.373 1.00127.16 ATOM 67 CA THR D 63 22.873 -47.818 -25.344 1.00130.59 ATOM 68 C THR D 63 23.226 -46.487 -24.699 1.00128.55 ATOM 69 O THR D 63 23.840 -45.635 -25.343 1.00132.69 ATOM 70 CB THR D 63 21.493 -47.703 -26.081 1.00135.76 ATOM 71 OG1 THR D 63 21.386 -48.735 -27.070 1.00147.77 ATOM 72 CG2 THR D 63 21.334 -46.355 -26.787 1.00139.99 ATOM 73 N SER D 64 22.922 -46.306 -23.423 1.00126.77 ATOM 74 CA SER D 64 23.333 -45.053 -22.809 1.00125.77 ATOM 75 C SER D 64 24.367 -45.270 -21.689 1.00122.72 ATOM 76 O SER D 64 24.807 -44.309 -21.063 1.00118.50 ATOM 77 CB SER D 64 22.129 -44.260 -22.312 1.00120.89 ATOM 78 OG SER D 64 22.561 -43.107 -21.611 1.00116.82 ATOM 79 N GLY D 65 24.681 -46.525 -21.370 1.00123.66 ATOM 80 CA GLY D 65 25.795 -46.812 -20.476 1.00123.89 ATOM 81 C GLY D 65 25.588 -46.753 -18.975 1.00118.78 ATOM 82 O GLY D 65 26.539 -46.908 -18.207 1.00115.31 ATOM 83 N LEU D 66 24.358 -46.514 -18.547 1.00117.41 ATOM 84 CA LEU D 66 24.058 -46.471 -17.122 1.00111.19 ATOM 85 C LEU D 66 24.138 -47.866 -16.477 1.00115.69 ATOM 86 O LEU D 66 23.451 -48.787 -16.920 1.00116.58 ATOM 87 CB LEU D 66 22.669 -45.852 -16.915 1.00102.07 ATOM 88 CG LEU D 66 22.545 -44.412 -17.434 1.00102.38 ATOM 89 CD1 LEU D 66 21.091 -43.979 -17.587 1.00100.09 ATOM 90 CD2 LEU D 66 23.294 -43.453 -16.521 1.00 99.56 ATOM 91 N CYS D 67 24.968 -48.023 -15.435 1.00122.65 ATOM 92 CA CYS D 67 25.103 -49.331 -14.765 1.00130.84 ATOM 93 C CYS D 67 23.873 -49.583 -13.874 1.00124.87 ATOM 94 O CYS D 67 23.271 -48.651 -13.329 1.00116.64 ATOM 95 CB CYS D 67 26.388 -49.463 -13.906 1.00129.73 ATOM 96 SG CYS D 67 28.027 -49.663 -14.678 1.00149.43 ATOM 97 N VAL D 68 23.493 -50.855 -13.749 1.00128.03 ATOM 98 CA VAL D 68 22.239 -51.263 -13.105 1.00124.62 ATOM 99 C VAL D 68 22.519 -52.452 -12.173 1.00130.79 ATOM 100 O VAL D 68 23.344 -53.295 -12.503 1.00141.34 ATOM 101 CB VAL D 68 21.172 -51.643 -14.177 1.00129.50 ATOM 102 CG1 VAL D 68 19.999 -52.399 -13.572 1.00124.48 ATOM 103 CG2 VAL D 68 20.677 -50.401 -14.898 1.00128.11 ATOM 104 N PRO D 69 21.852 -52.525 -11.001 1.00125.62 ATOM 105 CA PRO D 69 22.066 -53.703 -10.143 1.00128.58 ATOM 106 C PRO D 69 21.700 -55.001 -10.868 1.00129.72 ATOM 107 O PRO D 69 20.989 -54.930 -11.869 1.00126.12 ATOM 108 CB PRO D 69 21.125 -53.456 -8.960 1.00124.56 ATOM 109 CG PRO D 69 20.907 -51.983 -8.942 1.00119.65 ATOM 110 CD PRO D 69 20.950 -51.542 -10.374 1.00119.75 ATOM 111 N LEU D 70 22.145 -56.162 -10.390 1.00132.58 ATOM 112 CA LEU D 70 21.814 -57.387 -11.119 1.00131.22 ATOM 113 C LEU D 70 21.129 -58.501 -10.331 1.00133.59 ATOM 114 O LEU D 70 21.420 -59.680 -10.523 1.00142.52 ATOM 115 CB LEU D 70 23.075 -57.961 -11.776 1.00135.04 ATOM 116 CG LEU D 70 24.397 -58.111 -11.019 1.00138.78 ATOM 117 CD1 LEU D 70 24.403 -59.276 -10.033 1.00142.67 ATOM 118 CD2 LEU D 70 25.499 -58.291 -12.043 1.00144.33 ATOM 119 N THR D 71 20.191 -58.127 -9.474 1.00127.63 ATOM 120 CA THR D 71 19.080 -59.011 -9.167 1.00127.73 ATOM 121 C THR D 71 17.941 -58.408 -9.978 1.00124.12 ATOM 122 O THR D 71 16.762 -58.681 -9.756 1.00123.17 ATOM 123 CB THR D 71 18.775 -59.130 -7.665 1.00127.20 ATOM 124 OG1 THR D 71 18.581 -57.829 -7.102 1.00121.96 ATOM 125 CG2 THR D 71 19.934 -59.815 -6.951 1.00133.06 ATOM 126 N TRP D 72 18.350 -57.561 -10.921 1.00124.66 ATOM 127 CA TRP D 72 17.480 -56.942 -11.910 1.00122.98 ATOM 128 C TRP D 72 17.761 -57.587 -13.263 1.00125.49 ATOM 129 O TRP D 72 17.194 -57.185 -14.279 1.00120.88 ATOM 130 CB TRP D 72 17.710 -55.426 -12.014 1.00121.62 ATOM 131 CG TRP D 72 17.254 -54.591 -10.847 1.00118.30 ATOM 132 CD1 TRP D 72 17.033 -55.007 -9.566 1.00121.14 ATOM 133 CD2 TRP D 72 16.958 -53.186 -10.868 1.00115.76 ATOM 134 NE1 TRP D 72 16.622 -53.948 -8.789 1.00119.65 ATOM 135 CE2 TRP D 72 16.568 -52.820 -9.566 1.00114.85 ATOM 136 CE3 TRP D 72 16.986 -52.204 -11.865 1.00117.15 ATOM 137 CZ2 TRP D 72 16.209 -51.514 -9.233 1.00112.87 ATOM 138 CZ3 TRP D 72 16.631 -50.909 -11.532 1.00114.31 ATOM 139 CH2 TRP D 72 16.248 -50.575 -10.228 1.00113.35 ATOM 140 N ARG D 73 18.664 -58.566 -13.279 1.00131.94 ATOM 141 CA ARG D 73 19.073 -59.197 -14.531 1.00134.93 ATOM 142 C ARG D 73 18.629 -60.655 -14.666 1.00138.81 ATOM 143 O ARG D 73 19.139 -61.538 -13.973 1.00143.86 ATOM 144 CB ARG D 73 20.592 -59.116 -14.694 1.00139.60 ATOM 145 N CYS D 74 17.680 -60.899 -15.560 1.00139.13 ATOM 146 CA CYS D 74 16.849 -59.836 -16.113 1.00132.92 ATOM 147 C CYS D 74 15.398 -60.209 -15.855 1.00129.46 ATOM 148 O CYS D 74 14.898 -61.222 -16.343 1.00133.48 ATOM 149 CB CYS D 74 17.133 -59.624 -17.599 1.00137.93 ATOM 150 SG CYS D 74 18.866 -59.216 -17.945 1.00154.35 ATOM 151 N ASP D 75 14.739 -59.358 -15.085 1.00123.95 ATOM 152 CA ASP D 75 13.558 -59.723 -14.316 1.00123.66 ATOM 153 C ASP D 75 12.225 -59.530 -15.024 1.00119.64 ATOM 154 O ASP D 75 11.253 -59.113 -14.398 1.00117.13 ATOM 155 CB ASP D 75 13.569 -58.894 -13.039 1.00123.21 ATOM 156 CG ASP D 75 13.823 -57.422 -13.320 1.00120.57 ATOM 157 OD1 ASP D 75 13.650 -56.997 -14.482 1.00120.17 ATOM 158 OD2 ASP D 75 14.229 -56.699 -12.392 1.00118.67 ATOM 159 N ARG D 76 12.176 -59.845 -16.314 1.00121.76 ATOM 160 CA ARG D 76 10.948 -59.727 -17.100 1.00125.23 ATOM 161 C ARG D 76 10.496 -58.267 -17.256 1.00121.56 ATOM 162 O ARG D 76 9.411 -58.008 -17.775 1.00126.15 ATOM 163 CB ARG D 76 9.820 -60.576 -16.498 1.00127.81 ATOM 164 N ASP D 77 11.318 -57.317 -16.810 1.00115.08 ATOM 165 CA ASP D 77 11.066 -55.908 -17.130 1.00114.19 ATOM 166 C ASP D 77 12.261 -55.207 -17.746 1.00114.89 ATOM 167 O ASP D 77 13.416 -55.600 -17.568 1.00115.15 ATOM 168 CB ASP D 77 10.639 -55.050 -15.924 1.00111.24 ATOM 169 CG ASP D 77 9.547 -55.666 -15.094 1.00113.25 ATOM 170 OD1 ASP D 77 8.629 -56.272 -15.674 1.00120.92 ATOM 171 OD2 ASP D 77 9.529 -55.417 -13.872 1.00106.16 ATOM 172 N LEU D 78 11.938 -54.151 -18.481 1.00115.32 ATOM 173 CA LEU D 78 12.907 -53.359 -19.211 1.00116.18 ATOM 174 C LEU D 78 13.373 -52.205 -18.304 1.00111.80 ATOM 175 O LEU D 78 12.751 -51.155 -18.215 1.00110.78 ATOM 176 CB LEU D 78 12.299 -52.866 -20.546 1.00121.85 ATOM 177 CG LEU D 78 11.025 -51.988 -20.625 1.00123.72 ATOM 178 CD1 LEU D 78 11.238 -50.496 -20.476 1.00125.60 ATOM 179 CD2 LEU D 78 10.321 -52.178 -21.920 1.00125.02 ATOM 180 N ASP D 79 14.431 -52.402 -17.544 1.00111.47 ATOM 181 CA ASP D 79 14.863 -51.267 -16.748 1.00110.33 ATOM 182 C ASP D 79 15.699 -50.312 -17.576 1.00109.57 ATOM 183 O ASP D 79 15.708 -49.103 -17.338 1.00105.44 ATOM 184 CB ASP D 79 15.603 -51.726 -15.506 1.00114.75 ATOM 185 CG ASP D 79 14.827 -52.762 -14.733 1.00116.35 ATOM 186 OD1 ASP D 79 14.102 -52.357 -13.803 1.00112.43 ATOM 187 OD2 ASP D 79 14.918 -53.965 -15.055 1.00122.51 ATOM 188 N CYS D 80 16.429 -50.853 -18.538 1.00114.68 ATOM 189 CA CYS D 80 17.170 -49.981 -19.419 1.00118.43 ATOM 190 C CYS D 80 16.424 -49.863 -20.749 1.00120.25 ATOM 191 O CYS D 80 15.672 -50.757 -21.133 1.00121.85 ATOM 192 CB CYS D 80 18.586 -50.514 -19.585 1.00122.41 ATOM 193 SG CYS D 80 19.720 -49.813 -18.370 1.00145.43 ATOM 194 N SER D 81 16.636 -48.746 -21.439 1.00120.50 ATOM 195 CA SER D 81 15.947 -48.446 -22.695 1.00123.40 ATOM 196 C SER D 81 16.266 -49.389 -23.854 1.00126.14 ATOM 197 O SER D 81 15.570 -49.394 -24.870 1.00129.72 ATOM 198 CB SER D 81 16.237 -46.999 -23.093 1.00125.55 ATOM 199 OG SER D 81 15.784 -46.118 -22.075 1.00120.91 ATOM 200 N ASP D 82 17.343 -50.147 -23.714 1.00126.56 ATOM 201 CA ASP D 82 17.934 -50.864 -24.835 1.00134.92 ATOM 202 C ASP D 82 17.349 -52.259 -25.066 1.00136.55 ATOM 203 O ASP D 82 16.989 -52.613 -26.189 1.00145.95 ATOM 204 CB ASP D 82 19.439 -50.954 -24.599 1.00137.52 ATOM 205 CG ASP D 82 19.774 -51.701 -23.326 1.00134.99 ATOM 206 OD1 ASP D 82 18.846 -51.975 -22.537 1.00132.02 ATOM 207 OD2 ASP D 82 20.958 -51.975 -23.080 1.00137.31 ATOM 208 N GLY D 83 17.262 -53.053 -24.008 1.00129.09 ATOM 209 CA GLY D 83 16.895 -54.442 -24.172 1.00138.14 ATOM 210 C GLY D 83 18.100 -55.308 -23.878 1.00142.88 ATOM 211 O GLY D 83 18.369 -56.274 -24.591 1.00150.04 ATOM 212 N SER D 84 18.884 -54.896 -22.890 1.00137.59 ATOM 213 CA SER D 84 19.958 -55.726 -22.375 1.00141.60 ATOM 214 C SER D 84 19.563 -56.026 -20.953 1.00139.19 ATOM 215 O SER D 84 20.353 -55.852 -20.022 1.00139.99 ATOM 216 CB SER D 84 21.292 -54.993 -22.424 1.00143.12 ATOM 217 OG SER D 84 21.185 -53.753 -21.743 1.00136.52 ATOM 218 N ASP D 85 18.371 -56.588 -20.811 1.00138.88 ATOM 219 CA ASP D 85 17.669 -56.525 -19.547 1.00135.02 ATOM 220 C ASP D 85 16.274 -57.098 -19.743 1.00133.95 ATOM 221 O ASP D 85 16.079 -57.985 -20.574 1.00137.07 ATOM 222 CB ASP D 85 17.586 -55.074 -19.061 1.00131.41 ATOM 223 CG ASP D 85 16.848 -54.938 -17.755 1.00128.03 ATOM 224 OD1 ASP D 85 17.248 -55.620 -16.791 1.00129.31 ATOM 225 OD2 ASP D 85 15.871 -54.164 -17.693 1.00125.95 ATOM 226 N ARG D 129 0.287 -68.053 8.215 1.00121.88 ATOM 227 CA ARG D 129 0.652 -67.663 9.572 1.00126.31 ATOM 228 C ARG D 129 -0.369 -66.717 10.180 1.00124.54 ATOM 229 O ARG D 129 -1.077 -67.055 11.130 1.00125.82 ATOM 230 CB ARG D 129 2.020 -66.991 9.584 1.00125.05 ATOM 231 CG ARG D 129 3.059 -67.687 10.424 1.00128.83 ATOM 232 CD ARG D 129 4.434 -67.186 10.042 1.00131.42 ATOM 233 NE ARG D 129 5.232 -68.232 9.413 1.00135.74 ATOM 234 CZ ARG D 129 6.204 -68.005 8.536 1.00129.59 ATOM 235 NH1 ARG D 129 6.494 -66.764 8.170 1.00119.20 ATOM 236 NH2 ARG D 129 6.880 -69.020 8.018 1.00134.16 ATOM 237 N LEU D 130 -0.407 -65.516 9.616 1.00120.90 ATOM 238 CA LEU D 130 -1.255 -64.435 10.096 1.00117.47 ATOM 239 C LEU D 130 -2.567 -64.292 9.358 1.00113.45 ATOM 240 O LEU D 130 -2.600 -63.847 8.208 1.00110.94 ATOM 241 CB LEU D 130 -0.514 -63.101 10.045 1.00112.28 ATOM 242 CG LEU D 130 0.147 -62.726 11.365 1.00116.02 ATOM 243 CD1 LEU D 130 0.725 -61.327 11.292 1.00113.77 ATOM 244 CD2 LEU D 130 -0.903 -62.811 12.461 1.00118.56 ATOM 245 N ALA D 131 -3.637 -64.707 10.024 1.00114.21 ATOM 246 CA ALA D 131 -4.974 -64.594 9.475 1.00113.85 ATOM 247 C ALA D 131 -5.216 -63.145 9.079 1.00109.90 ATOM 248 O ALA D 131 -4.973 -62.229 9.868 1.00113.31 ATOM 249 CB ALA D 131 -6.007 -65.055 10.487 1.00118.67 ATOM 250 CA CA D 202 15.247 -56.290 -15.976 1.00110.72 TER